This blog module is the same included with Drupal core before version 8. It was removed from Drupal core as part of a meta issue to make core more maintainable.
Development sponsored by NeverGone during his volunteer time.
IMPORTANT:
If you have previously uninstall this module and cannot reinstall it, check this comment: https://www.drupal.org/project/blog/issues/2780203#comment-14605304
Short name
blog